New Advances in High-Performance Structural Ceramics and Their Composites

Topic Information

Dear Colleagues,

In recent years, advances in high-performance structural ceramics and their composites have opened up new possibilities for applications in extreme environments, where materials with outstanding resistance to heat, abrasion and corrosion are required. Nanostructured ceramics, for example, have shown significant improvements in mechanical properties such as hardness and fracture toughness, thanks to the reduction in grain size and the optimization of secondary phases at the nanometric scale. In addition, advances in ceramic matrix composites (CMCs) have allowed the development of much stronger, lighter, and more durable materials, such as SiC- and fiber-based composites, which combine the high thermal resistance of ceramics with the ductility of fibrous reinforcements. The use of advanced processing technologies, such as chemical vapor infiltration (CVI) or 3D printing, has allowed the creation of more complex and robust structures, adapted to critical applications in sectors such as aerospace, automotive, and energy. Refractory ceramic materials, such as hafnium carbide, are increasingly being investigated for use in systems operating at extreme temperatures, such as hypersonic engines and nuclear reactors. These developments are not only pushing the boundaries of materials engineering but also posing new challenges and opportunities for research. With the continued evolution of manufacturing techniques and design at the micro- and nanostructural level, advanced ceramics and their composites promise to transform a wide range of industrial applications, improving the efficiency and sustainability of high-demand systems.

Dr. Amparo Borrell
Dr. Rut Benavente
Prof. Dr. Rujie He
Topic Editors

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Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Materials materials	3.1	5.8	2008	13.9 Days	CHF 2600	Submit
Ceramics ceramics	2.7	3.0	2018	20.7 Days	CHF 1600	Submit
Journal of Composites Science jcs	3.0	5.0	2017	17.9 Days	CHF 1800	Submit

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All Materials Ceramics J. Compos. Sci.

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15 pages, 25065 KiB  

Open AccessArticle

The Impact of Cyclic Oxidation in Dissociated Air on the Mechanical Properties of Freeze-Cast ZrB₂/MoSi₂ Ceramics

by Ludovic Charpentier, Eric Bêche, Hervé Glénat, Álvaro Sández-Gómez and Pedro Miranda

Materials 2025, 18(8), 1815; https://doi.org/10.3390/ma18081815 - 15 Apr 2025

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Abstract

Creating reusable thermal shields would decrease our carbon footprint by eliminating the need for the reapplication of single-use ablative alternatives. Our previous investigations identified ultra-high-temperature ZrB₂ with 20 vol.% MoSi₂ ceramics as a promising candidate for the fabrication of reusable thermal [...] Read more.

Creating reusable thermal shields would decrease our carbon footprint by eliminating the need for the reapplication of single-use ablative alternatives. Our previous investigations identified ultra-high-temperature ZrB₂ with 20 vol.% MoSi₂ ceramics as a promising candidate for the fabrication of reusable thermal shields. Therefore, in this study, this material was exposed to cyclic oxidation at 1800 and 2150 K in dissociated air in order to investigate how it might withstand multiple terrestrial re-entries. At 1800 K, we observed semi-parabolic oxidation kinetics with the growth of a protective oxide layer, the silica-based composition of which was determined using XRD and SEM (coupled with EDS). More dramatic damage was observed at 2150 K, with continuous linear oxidation kinetics seen. Cross-section hardness measurements using nanoindentation revealed that the oxidized part of the samples was the source of their mechanical weakness, suggesting that the material should be used below 1800 K to ensure its reusability. Full article

(This article belongs to the Topic New Advances in High-Performance Structural Ceramics and Their Composites)

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